I say this with mixed emotions, the new F-250 is amazing, quiet for a diesel with lots of useful goodies but holy cow they are expensive, you can easily add $20k worth of options to the lower trim lines. Here's a link to the series brochure
Age is creeping up on me (I just turned 70) and on my current F250 Powerstroke - it's 19 years old. Lots of little things have been breaking or need work. The engine has some minor oil leaks, the rear diff cover is leaking gear oil, power windows broke some time ago, the cables that operate the half doors (it's the supercab model) both broke within a few days of each other and I've probably forgotten a few things.
Yes, it's cheaper to keep fixing it (it's in the shop now) and drive it until the wheels fall off but I'm going to need a reliable truck for the next ten years at least (good Lord willing). I need to haul hay, feed, take the tractor in for service, etc. and don't want to deal with some catastrophic failure miles from anywhere. A friend recently needed a tow truck and nobody would come from the two closest cities, they finally got one from over an hour away. Life in ranch land.
My current truck has the 8' bed which is a must since I haul plywood once in a while so that's a must on a new truck. Last Saturday the wife and I test drove (she was in the back seat) an F-250 crew cab diesel (short bed) and I was super impressed as was she - the seats were comfy. Love the crew cab, the seats fold up providing a ton of inside room. The tow cameras are absolutely amazing. The six speed tranny was very smooth and the engine has an exhaust brake - wow.
I didn't realize it but the latest generation F-250/350/450 are aluminum bodies like the F150 to save weight so they could fully box the frame rails.
After doing a bunch of research and reading Ford truck forums, I'm pretty set on ordering a 2019 F-250 XLT with several options, crew cab and long bed. With this config you get a 48 gallon tank - nice. And yes, it's a long wheelbase (176") but the cameras make it trivial to maneuver the beast. Our motorhome has a 256" wheelbase so we're used to length.